IsItAGoodCar
Reliability Guide

Common Problems with the
2020 BMW X4 (G02)

We've identified 3 known issues that can affect the 2020 BMW X4 (G02). None are considered critical, but they're worth knowing about before you buy.

3
Known Issues
0
Serious
3
Moderate
0
Minor

All Known Issues

Active Grille Shutter Motor

ModerateCooling System

The motorized air flap louvres behind the kidney grilles can bind due to winter road grit and road salt, causing the internal micro-stepper motor to fail and triggering an engine management light.

Est. Repair Cost: £300–£600
Warning Signs:

Engine check light illuminated on instrument cluster, Active aero flaps stuck permanently open or closed, Clicking noise from behind front bumper on vehicle unlock

What to Inspect:
  • Visually inspect front kidney grille flaps to ensure they open and close smoothly
  • Scan for stored air flap actuator fault codes (e.g. 138102)
Verified by IsItAGoodCar Research TeamUpdated

Steering Rack Play

ModerateSteering

The variable sport steering rack can develop play between the pinion and rack gear over sharp road ridges, causing an unsettling clunk and vague on-centre steering feel on cars fitted with large wheels.

Est. Repair Cost: £300–£1,500
Warning Signs:

Knock through steering column over small potholes, Car wanders slightly on motorway requiring constant micro-corrections, Rattle when jiggling steering wheel while parked

What to Inspect:
  • Drive over broken tarmac at 20–30 mph and feel for play through the rim
  • Check if upgraded thrust piece bush has been fitted
Verified by IsItAGoodCar Research TeamUpdated

iDrive Screen Delamination

ModerateElectrics & Electronics

The optically bonded central touchscreen display (CID) can develop internal bubbles, milky patches, or phantom touch inputs as the adhesive layer breaks down under cabin solar heat.

Est. Repair Cost: £500–£1,200
Warning Signs:

Bubbles or oily ring patterns visible under the glass, Ghost touches causing map scrolling or radio channel switching on its own, Unresponsive areas of the touchscreen

What to Inspect:
  • Inspect touchscreen surface from multiple angles under daylight with screen turned off
  • Test touch response across all four corners of the display
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2020 BMW X4 (G02)

  • Check the B-series engines for slow coolant leaks around the water pump and expansion tank seams.
  • Test the iDrive 7 system and digital dials for any software freezing or connectivity issues.
  • Inspect the large alloy wheels (often 20-inch or 21-inch) for severe kerb damage, as the low-profile tyres offer zero protection.
  • Ensure the active grille shutters open and close freely without throwing dashboard warning lights.
  • Check the rear passenger headroom; the sloping roof makes it tight for tall adults, so ensure it suits your needs.
  • Verify that the adaptive M suspension (if fitted) changes the ride quality noticeably between Comfort and Sport modes.
Check a 2020 BMW X4 (G02) by Registration